Welcome to the Complementary Formula Calculator
The Formulas for the Calculator's is displayed in the table below!
E = Voltage / I = Amps / P = Watts / R = Ohms / PF = Power Factor / Eff = Efficiency / HP = Horsepower / kVA = Apparent Power
|To Find||Direct Current||AC/ 1 Phase (115/120)||AC/ 1 Phase (208/230/240)||AC/ 3 Phase (All Voltages)|
|Amps When HP is Known|
|Amps When Kwatts is Known|
|Amps When kVA is Known||N/A|
Choose the Voltage Type (DC or AC).
From the Values Selection Table, enter the values of the elements of the formula you want.
Click on the Calculate Button.
The answers are shown in the Formula Table above, also the correct formula is displayed according to your element selection.
If DC is chosen then answers will be shown in the DC column.
If AC/1 Single Phase (100s Volt) is chosen then answers will be shown in the AC/1 (115/120) column.
If AC/1 single Phase (200s Volt) is chosen then answers will be shown in the AC/1 (208/240) column.
If AC/ 3 (all Voltages) is chosen then answers will be shown in the AC/3 column.
Formula Values Selection
|Power Factor (%)|
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In electrical engineering, power consumption refers to the electrical energy per unit time, supplied to operate something, such as a home appliance. Power consumption is usually measured in units of watts (W) or kilowatts (kW).
The energy used by equipment is always more than the energy really needed. This is because no equipment is 100% efficient. Power is wasted as heat, vibrations and/or electromagnetic radiation. For example, a light bulb does not only convert electric power into light; it also makes some heat.
Power is how fast energy is used or transmitted - power is the amount of energy divided by the time it took to use the energy. Its unit is the watt, which is one joule per second of energy used.
Home Energy Cost Calculator
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How to calculate energy consumption:
Device Wattage (watts) x Hours Used Per Day = Watt-hours (Wh) per Day.
Device Usage (Wh) / 1000 (Wh/kWh) = Device Usage in kWh.
Daily Usage (kWh) x 30 (Days) = Approximate Monthly Usage (kWh/Month)